Home / 111,859.02-154,365.96-64,115.16

Finding the Fourth Proportional to 111,859.02, 154,365.96 and 64,115.16

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Solution

The fourth proportional to 111,859.02, 154,365.96 and 64,115.16 is: 88,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,859.02 : 154,365.96 = 64,115.16 : x
  2. Step 2: Convert to fraction form
    111,859.02/154,365.96 = 64,115.16/x
  3. Step 3: Cross multiply
    111,859.02x = 154,365.96 × 64,115.16
  4. Step 4: Simplify right side
    111,859.02x = 9,897,198,223.95
  5. Step 5: Solve for x
    x = 9,897,198,223.95/111,859.02
  6. Step 6: Final answer
    x = 88,479.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.